I work out regulary to keep fit.我经常努力锻炼身体以保持健康.He runs to keep fit.他跑步为了保持健康.I think the best way to keep fit is to go in for sports.我想保持身体健康的最好办法就是参加体育运动....
An effective aerodynamic optimization design method of transonic airfoil is given.提出了一种有效的跨音速翼型气动优化设计方法.The experimental results of NACA 0012 airfoil dynamic pressure measurement are given here.12翼型动态测压的实验结果,初步分析了影响翼型动态气...
You can store your entire CD collection on the computer's hard drive.你可以将收藏的全部CD保存在电脑硬盘上。You can compress huge amounts of data on to a CD-ROM.可以把大量的数据压缩到一张CD-ROM上。The last track on the CD is an instrumental.CD上的最后一支...